| 东海南部净初级生产力与日本鲐生物量的关联性研究 |
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| 引用本文： | 官文江,陈新军,高峰,李纲.东海南部净初级生产力与日本鲐生物量的关联性研究[J].海洋学报(英文版),2014,33(10):43-48. |
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| 作者姓名： | 官文江 陈新军 高峰 李纲 |
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| 作者单位： | 上海海洋大学, 海洋科学学院, 上海 201306, 中国;大洋渔业资源可持续开发省部共建教育部重点实验室, 上海海洋大学, 上海 201306, 中国;上海海洋大学, 海洋科学学院, 上海 201306, 中国;大洋渔业资源可持续开发省部共建教育部重点实验室, 上海海洋大学, 上海 201306, 中国;上海海洋大学, 海洋科学学院, 上海 201306, 中国;大洋渔业资源可持续开发省部共建教育部重点实验室, 上海海洋大学, 上海 201306, 中国;上海海洋大学, 海洋科学学院, 上海 201306, 中国;大洋渔业资源可持续开发省部共建教育部重点实验室, 上海海洋大学, 上海 201306, 中国 |
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| 基金项目： | The Industrialization Project of National Development and Reform Commission under contract No. 2159999; the Shanghai Universities First-class Disciplines Project (Fisheries); The National High-tech Industrialization Project of Remote Sensing System Development for High Resolution Ocean Satellite and Demonstration Application. |
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| 摘 要： | Fish biomass is a critical component of fishery stock assessment and management and it is often estimated from ocean primary production（OPP）. However, the relationship between the biomass of a fish stock and OPP is always complicated due to a variety of trophic controls in the ecosystem. In this paper, we examine the quantitative relationship between the biomass of chub mackerel（Scomber japonicus） and net primary production（NPP） in the southern East China Sea（SECS）, using catch and effort data from the Chinese mainland large light-purse seine fishery logbook and NPP derived from remote sensing. We further discuss the mechanisms of trophic control in regulating this relationship. The results show a significant non-linear relationship exists between standardized CPUE（Catch-Per-Unit-Effort） and NPP（P〈0.05）. This relationship can be described by a convex parabolic curve, where the biomass of chub mackerel increases with NPP to a maximum and then decreases when the NPP exceeds this point. The results imply that the ecosystem in the SECS is subject to complex trophic controls. We speculate that the change in abundance of key species at intermediate trophic levels and/or interspecific competition might contribute to this complex relationship.
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| 关 键 词： | 净初级生产力 东中国海 生物量 鲐鱼 渔业资源评估 营养控制 生态系统 非线性关系 |
| 收稿时间： | 6/7/2013 12:00:00 AM |
| 修稿时间： | 2013/12/28 0:00:00 |
Linkages between the biomass of Scomber japonicus and net primary production in the southern East China Sea |
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| Guan Wenjiang,Chen Xinjun,Gao Feng and Li Gang.Linkages between the biomass of Scomber japonicus and net primary production in the southern East China Sea[J].Acta Oceanologica Sinica,2014,33(10):43-48. |
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| Authors: | Guan Wenjiang Chen Xinjun Gao Feng and Li Gang |
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| Institution: | College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China |
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| Abstract: | Fish biomass is a critical component of fishery stock assessment and management and it is often estimated from ocean primary production (OPP). However, the relationship between the biomass of a fish stock and OPP is always complicated due to a variety of trophic controls in the ecosystem. In this paper, we examine the quantitative relationship between the biomass of chub mackerel (Scomber japonicus) and net primary production (NPP) in the southern East China Sea (SECS), using catch and effort data from the Chinese mainland large light-purse seine fishery logbook and NPP derived from remote sensing. We further discuss the mechanisms of trophic control in regulating this relationship. The results show a significant non-linear relationship exists between standardized CPUE (Catch-Per-Unit-Effort) and NPP (P<0.05). This relationship can be described by a convex parabolic curve, where the biomass of chub mackerel increases with NPP to a maximum and then decreases when the NPP exceeds this point. The results imply that the ecosystem in the SECS is subject to complex trophic controls. We speculate that the change in abundance of key species at intermediate trophic levels and/or interspecific competition might contribute to this complex relationship. |
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| Keywords: | southern East China Sea net primary production Scomber japonicus biomass |
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